Compensation Control For Radial Suspension Force In Bearingless Induction Motors
PROCEEDINGS OF THE 2016 IEEE 11TH CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA)(2016)
Abstract
The levitation control of Bearingless motor depends on the bias magnetic field provided by the torque winding. Bearingless induction motor (BIM) became one of the earliest and most widely used types. In order to suspend the rotor of bearingless induction motor, a compensation control method for radial suspension force was proposed in this paper. Firstly, the principle of suspending the rotor was analyzed. Then, the rotor flux and the air-gap flux orientation decoupling strategies was contrast. Lastly, the compensation control method for radial suspension force was proposed based on the characteristics of different decoupling strategies. The experimental results confirmed the validity of the proposed compensation control method.
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Key words
Bearingless induction motor, rotor flux orientation, air-gap flux orientation, compensation control method, radial suspension force
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